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SHEAR RATE DETERMINATION FOR TWIN SCREW CONTINUOUS PBX PROCESSING

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
8814
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
8814
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
MACH I Inc.
340 East Church Road King of Prussia, PA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1989
Title: SHEAR RATE DETERMINATION FOR TWIN SCREW CONTINUOUS PBX PROCESSING
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $425,000.00
 

Abstract:

THE PROPOSED RESEARCH ADDRESSES THE NEED FOR A SIMPLE, VISUAL METHOD TO DETERMINE THE SHEAR RATE EXPERIENCED IN A TWIN SCREW CONTINUOUS MIXER WHERE ENERGETIC PBX MATERIALS ARE MIXED. THE SCOPE OF THIS PROPOSAL IS TO DETERMINE THE FEASIBILITY OF ADDING SMALL QUANTITIES OF VARIOUS DRY FREE FLOWING MICROENCAPSULATED TAGGANT MATERIALS TO A SIMULATED NON-ENERGETIC PBX PROTOTYPE FORMULATION AND SUBJECTING THOSE MIXES TO THE SHEAR FORCES WITHIN A LABORATORY TWIN SCREW MIXER. SHEARING CONDITIONS EXPERIENCED DURING TWIN SCREW MIXING CAN THEN BE MEASURED BY DETERMINING THE EXTEND OF MICROCAPSULE RUPTURE AND RELEASING THE TAGGANT. TAGGANT METHODS TO BE STUDIED INCLUDE DETECTION OF RUPTURED CAPSULES BY VISUAL METHODS (COLORED DYES), HALOGEN VAPOR DETECTION (REFRIGERANT SNIFFERS), SPECTROPHOTOMETRY, ORDOR AND FLUORESCENCE. SMALL QUANTITIES OF NON-HAZARDOUS SIMULATED PBX MIXTURES CONTAINING MICROENCAPSULATED TAGGANTS WILL BE TESTED UNDER VARYING SHEAR RATE CONDITIONS IN A SMALL LABORATORY TWIN SCREW MIXER WITH INSTRUMENTATION. BY VARYING SYNTHESIS METHODS, SEVERAL MICROENCAPSULATED PARAMETERS SUCH AS CAPSULE PARTICLE SIZE/SIZE RANGE, WALL THICKNESS AND POLYMERIC ENCAPSULANT MATERIAL WILL BE STUDIED.

Principal Investigator:

Albert C Condo
2153568279

Business Contact:

Small Business Information at Submission:

Mach I Inc.
346 E Church Rd King Of Prussia, PA 19406

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No